| Churchill/MCRA 5 contains: |
|---|
| <-- See earlier |
|---|
| 30 |
Switch no. 8 (A.P Switch) |
| 31 |
Switch no. 9 ('L' Delay) |
| 32 |
Projectiles, fuses, time-delay action mechanism |
| 33 |
Switch no. 9 ('L' Delay) |
| 34 |
Switch no. 9 ('L' Delay) |
| 35 |
T V Switch: long delay, short delay |
| 36 |
Switch no. 12 (Anti-Lift Device) |
| 37 |
Switch no. 13 (Universal Switch) |
| 38 |
Royal Commission on Awards to Inventors: claims of Macrae and others in respect of Switches 1, 2, 3, 8, 12, 13 |
| 39 |
Royal Commission on Awards to Inventors: claims of Macrae and others in respect of Switches 1, 2, 3, 8, 12, 13 and 'L' Delay |
| 40 |
Switches 1, 2, 3, 8, 12, 13 |
| See later --> |
|---|
|
The Papers of Colonel R S Macrae
| Title |
T V Switch: long delay, short delay |
| Reference |
MCRA 5/35 |
| Covering Dates |
Dec 1939-Jan 1945 |
| Extent and Medium |
1 file |
|
| Content and context |
Notes and correspondence on Macrae's patent claim for improvements in electric switches for blowing up land mines on railway lines, with draft specifications. |
| No further on-line information. |
|
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